Commit d83dfeb5 accidentally inverted
a test, causing at least the presentation linked on the above bug to
render all black

Change-Id: I2267ef43023b735587d6921f17aa7207f70dbd7b
Reviewed-on: https://gerrit.libreoffice.org/14084Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>